PSPB currently pulls pages from 160 sites comprising of 177 URLs.

Site Specific Pages

A Softer World
AOL User Pages
Aardman Animations
Ain’t it Cool News
AltaVista
AnandTech
Angelfire
Apple User Pages
Apple.com
Argos
Arstechnica.com
B3ta
BBC News
BBC.co.uk
BFI - The British Film Institute
Bletchley Park Museum
Blogger
Bloomsbury Books
BoingBoing.net
Bonsai Kitten
CD-WOW!
CERN
Castle Howard
Cats That Look Like Hitler
Channel 4
City of York Council
DEC
Daring Fireball
Debian Linux
Digital Spy
Douglas Adams
Electronic Frontier Foundation
English Heritage
English Nature
EveryMac
FanFiction.net
GCHQ - Government Communications Headquarters
GameSpot
GeoCities
George R. R. Martin’s Not a Blog
Google.com
Groklaw
Heaven’s Gate
Her Majesty’s Treasury
HotWired
Hotmail.com
ICQ
IMDB
J K Rowling
Jorvik Viking Centre
Kuro5hin
Lime Wire
Linux Weekly News
London Review of Books
Low End Mac
Lspace.org
Lycos UK
MAFF - The Ministry of Agriculture, Fisheries and Food
MI5 - The Security Service
MacRumors
Make Magazine
McDonald’s UK
MetaFilter
Microsoft.com
Minster FM
Mozilla
Mumsnet
MySpace
NASA
NME - New Musical Express
NTK
Napster
National Railway Museum
Natural History Museum
Neil Gaiman
Netscape
New Scientist
New York Times
North York Moors National Park
North Yorkshire County Council
North Yorkshire Moors Railway
Oasis
Office of the Prime Minister
Open University
Outpost Gallifrey
Penguin Books
Penny Arcade
Pitchfork
Pizza Express
Pizza Hut
Popbitch
Post Secret
Puffin Books
RNLI
Radio Times
Radiohead.com
Random Acts of Reality
Rotten Tomatoes
Salam Pax
Scan Computers
Second Life
Seti@Home
Sky
Slashdot
Space Jam
Space.com
StarWars.com
Steam
Stuckism International
Sun Microsystems
Suprnova
TV Tropes
TVGoHome
Terry Pratchett Books
Tesco.net User Homepages
The A.V. Club
The British Antarctic Survey
The British Library
The British Museum
The Campaign for Real Ale
The Economist
The Financial Times
The Guardian
The Independent
The Met Office
The National Lottery
The Official Babylon 5 Web Site
The Official Red Dwarf Website
The Onion
The Royal Family
The Telegraph
The Times and Sunday Times
The Yorkshire Post
TheRegister.co.uk
Think Secret
Time Out
Tripod
UK Parliament
Ubuntu Linux
Universities and Colleges Admissions Service
University of Aberystwyth
University of York
User Friendly
Visit York
Wikipedia.org
Winamp
Wired
WordPress.com
XKCD
Yahoo
York Minster
York Press
York St John University
York Stories
York Theatre Royal
Yorkshire Water
craigslist
fark
h2g2 - The Hitchhiker’s Guide to the Galaxy - Earth Edition
id Software